MPDEMON - Macraigor System
Contents
1. 15 16 p GND nc 17 18 p GND nc 19 20 p GND MIPS EJTAG 2 5 There are many MIPS OCD headers in use This is the one specified by MTI for EJTAG 2 5 TRST i 1 2 p GND TDI i 3 4 p GND TDO o 5 6 p GND TMS i 7 8 p GND TCK i 9 10 p GND RESET oc 11 12 k key DINT I 13 14 p TVecc Toshiba s MIPS header This header uses a pin spacing of 0 05 TRST i 1 2 p GND TDI i 3 4 p GND TDO o 5 6 p GND TMS i 7 8 p GND TCK i 9 10 ne TVcc p 11 12 ne RESET oc 13 14 nc nc 15 16 ne nc 17 18 ne ne 19 20 ne Phillips MIPS header TRST TDI TDO TMS TCK RESET AMD Elan SC520 This header uses a pin spacing of 2mm GND TCK TMS TDI TDO SRESET AMD Athlon This header uses a pin spacing of 0 05 TVcc GND DBREQ RESET i 1 2 p GND i 3 4 p GND o 5 6 p GND i 7 8 p GND i 9 10 p GND oc 11 12 p GND nc 13 14 p GND nc 15 16 p GND nc 17 18 p GND nc 19 20 p GND p 1 2 p TVce i 3 4 0 CMDACK i 5 6 i BR TC I 7 8 o STOP TX o 9 10 o TRIG TRACE i 11 12 k KEY p 1 2 i TCK nce 3 4 1 TMS ne 5 6 ne nce 7 8 i TDI nc 9 10 i TRESET p 112. At each TCP IP port number lt cpu s GDB monitor tcp ip port gt prompt enter lt cr gt this will let OCDREMOTE assign a port number to the CPU After all the CPUs have been entered enter any key to return to the main menu Enter r lt cr gt to restart the MPDEMON The new values will now take effect 13 5 Personality Modules The Personality Module is responsible for communicating with the target under test with both the proper voltages and the proper pin out Under most circumstances the addition of a new Personality Module is all that is needed to use your MPDEMON with a different processor Firmware updates are not typically needed since the MPDEMON has all the information needed to communicate with a wide variety of target processors A partial list of available Personality Modules is AMD SC 520 AMD Athlon AMD Opteron ARM 14 pin ARM 20 pin BDM for Motorola MPC 5xx 8xx COP for Motorola and IBM PPC 6xx 7xx 82xx IBM PPC 4xx MIPS EJTAG there are several variations of this connection for various company s MIPS processors XScale Microarchitecture For the most current list of available personality modules visit our web site at www macraigor com New Personality Modules for the MPDEMON may be purchased at a price that is significantly lower than the cost of a new MPDEMON 14 6 Upgrades The MPDEMON is microprocessor based and its firmware resides in Flash memory This enables the firmware to be fie
3. 12 o TDO i 13 14 o DBRDY p 15 16 i PLLTEST 21 AMD Opteron This header uses a pin spacing of 0 05 GND RSVD1 RSVDO DBREQ DBRDY TCK TMS TDI TRST TDO TVcc TVcc KEY ROD OR eee Ome OD 22 sup UCD VV VT UO 5 B Qa O QQQ ZZZ JJJ Q Z J NMQAQQAQQQ ZZZZZZZ VRC RCRCORORCRS
4. A new CPU of UNKNOWN type will be added to the bottom of the list Change the type of CPU to the one you need as described above To delete a CPU from the list click the Delete button next to the CPU you want to remove from the scan chain list That entry will be removed from the list The port numbers will change to reflect the new list order Click the Submit button to store the new scan chain configuration into flash memory Click the Reboot button to restart the MPDEMON The new values will now take effect On the Serial Port Display eS Enter O lt cr gt _ to go to the OCDREMOTE menu Enter lt cr gt to retain the current JTAG BDM clock rate Enter y lt cr gt after Do you want to change the JTAG chain At the Number of Devices in Scan Chain prompt enter the number of devices CPUs and other devices in the JTAG BDM scan chain If you enter lt cr gt the current value shown in brackets will be retained At each Device lt scan chain index gt prompt enter the name of the CPU device at this location in the scan chain If the device you wish to add is not a CPU e g a TAP controller FPGA etc enter the UNKNOWN lt ir length in bits gt lt bypass length in bits gt device type where lt ir length in bits gt the length in bits of the device s JTAG Instruction Register and lt bypass length in bits gt the length in bits of the device when it is placed in bypass mode this is typically 1
5. O O oc SIAN SiS 12 14 16 nc nc nc QACK TRST TVcc GND GND NOTE It is vital that pins 1 and 6 properly reflect the status of the target processor immediately following RESET Some processors have configurable pins MPC8xx etc that are specified by a reset configuration word at the time of reset These pins must be set properly and must ALWAYS reflect the status of the processor correctly Check the hardware reset configuration word in the Motorola User s manual FRZ or VFLSO GND GND RESET TVcc o P P oc Pp WO Qn Go pee DIa AIN Oom omo OnCE On Chip Emulation for Motorola DSP MeCORE TDI TDO TCK RESET TVcc nc oc nc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 19 somone SRESET DSCK FRZ or VFLS1 DSDI DSDO GND GND GND TMS GND TRST ARM There are two standard ARM pinouts and older 14 pin specification and a newer 20 pin specification TVcc p 1 2 p GND TRST i 3 4 p GND TDI i 5 6 p GND TMS i 7 8 p GND TCK i 9 10 p GND TDO o 11 12 0c RESET TVcc p 13 14 p GND OR TVcc p 1 2 ne TRST i 3 4 p GND TDI i 5 6 p GND TMS i 7 8 p GND TCK i 9 10 p GND nc 11 12 p GND TDO o 13 14 p GND RESET oc
6. either obtain the necessary parameters from your network administrator and enter them using the menu or you can turn on DHCP mode and have the MPDEMON attempt to obtain its network parameters from a DHCP server on your network If you aren t sure if your network has a DHCP server ask your network administrator 3 1 1 Manual Ethernet Configuration For manual configuration via the serial interface 1 Make sure that the Use DHCP option is set to No If it is not set to No then select d and then n and then reboot the MPDEMON 2 Select a to set the TCP IP Address and enter the address that your network administrator gave you Note that there will already be an address configured This address is used in manufacturing and testing the MPDEMON and will not work on your network 3 Select m to set the TCP IP Mask that your network administrator gave you As with the TCP IP Address there will already be a value in this field but it is unlikely to work on your network 4 In some cases you will need to enter a Gateway address This is not necessary if the MPDEMON is on the same subnet as your host machine Again you should check with your network administrator to be sure To enter the Gateway address select g and enter the address 5 Once you have entered these parameters you must reboot the MPDEMON before they will take effect For manual configuration via the web interface Click on the TCP IP Configuratio
7. locate a free connection 2 3 3 Power connection The MPDEMON is turned on by plugging in the 5V power connection There is no separate power switch When you plug in the power connection you should see all three LED indicators on the front of the MPDEMON turn on for about five seconds and then the HOST and RUN LEDs should turn off leaving only the PWR LED on At this point if you are using the serial connection for setting up and configuring the MPDEMON you should see a banner and menu on your serial terminal that looks like the following iB Serial COM1 SecureCRT 0 x File Edit View Options Transfer Script Tools Window Help DaHAD gt AeQ SSES PRBrl e a Macraigor Systems mpDemon tm version 3 0 0 1 Licenses FP API Baud Rate 115200 Use DHCP t Yes DHCP Hostname MPDOOOOO1 TCP IP Address 192 168 0 102 Mask 255 255 255 0 Gateway 192 168 0 1 MAC Address 00 60 bf 01 06 04 Macraigor API4 Port 1000 OCDREMOTE JTAG spee d1 JTAG TDO lt 1 PPC826 8888 lt TDI mpDemon Command Menu Set Serial API baud Rate Set DHCP option Set DHCP hostName Set OCDREMOTE Configuration Test OCDREMOTE Configuration Update License Code s Set Macraigor API4 Port Ping TCP IP address Display Error Log Reboot mpDemon Type Command lt Enter gt will refresh screen gt Ready Serial Com 27 49 27 Rows 84Cols vT100 AmMucorAozyoy If you want to use the web based interfac
8. need this information when you configure your host software 3 3 Serial The serial port on the MPDEMON is used for two purposes It is first used to connect to a serial terminal to configure the MPDEMON and can then be used as the debug interface In order to use the serial connection as the debug interface you must first connect it as the terminal as discussed in section 2 3 2 Configure the Serial API baud Rate parameter to set the baud rate at which you want to communicate with the MPDEMON The default baud rate of 115200 is usually the best selection since it provides the best performance However you may need to decrease this rate if you find that you are getting communication errors or if your host software cannot support this baud rate Select b from the menu and then enter the desired rate from the displayed list You must now switch the MPDEMON into a different mode in which it will use the serial port as the debug connection Unplug the MPDEMON and change the OPTIONS jumper on the front of the box to look like this O0O0O0 OO0O0 Plug the MPDEMON back in You should see the three LEDs come on and then change to just the PWR LED as usual but nothing will be displayed on your terminal screen The MPDEMON is now ready to debug using the serial port Close your terminal emulator so that the serial port is freed for another application and then start your host software and configure it with the baud rate that you just setup in
9. that if you are using the web interface the TCP IP address of the MPDEMON will be different now so you need to browse to the new address which can be viewed on the serial terminal If your network s DHCP and DNS servers are working properly you should also be able to browse to the name that you entered in the Host name field If for some reason the MPDEMON is unable to get a response from a DHCP server then it will timeout after about 30 seconds and display an error message In this case you can try again by rebooting the MPDEMON or you can change the DHCP selection back to No and enter fixed network parameters as described in section 3 1 1 This error is usually due to the lack of a DHCP server on your network or an unplugged or improperly connected Ethernet connection Make sure that the Lnk LED is lit on the back of the MPDEMON If it is not then you don t have a connection to the network There is one other DHCP failure that can occur If the DHCP server offers the MPDEMON an address that is already being used by another device on your network the MPDEMON will show an error message indicating this This failure is generally caused by a DHCP server that is not correctly configured Contact your network administrator to resolve the issue 3 2 Parallel The parallel port on the MPDEMON is an IEEE 1284 compatible port but does not support daisy chaining It can communicate in all standard parallel modes including comp
10. that a straight through RS 232 cable such as the one supplied with the MPDEMON is connected to the MPDEMON and the host computer 2 Verify that your terminal emulator is configured to use the correct COM port if your computer has more than one e g COM1 or COM2 and that the parameters are set to 19200 baud no parity 8 data bits 1 stop bit and no flow control e Host computer cannot communicate with the MPDEMON o Parallel port connection 1 Verify that the port is enabled via the CMOS setup for your computer and set the mode for ECP if available Verify that your cable is connected to the port that you are specifying in your host software ie LPT1 LPT2 etc Verify the use of an IEEE 1284 rated parallel port cable Verify that no other application has the parallel port open For instance a printer driver may be using the port already o Ethernet connection Verify that the Ethernet cable is securely plugged in to the MPDEMON and the network jack Verify that the LNK light on the MPDEMON is on If it is not then you don t have a connection to your network and you should contact your network administrator Try to ping the TCP IP address of the MPDEMON from your host computer Try to ping another computer on your network from the MPDEMON there is a selection on the serial menu to do this Unplug the MPDEMON from the network and then try to ping the MPDEMON s address again If you get a response then th
11. MPDEMON USER S MANUAL MULTI PORT OCD INTERFACE Using OCDemon technology from Macraigor Systems LLC Macraigor Systems LLC P O Box 471008 Brookline Village MA 02447 617 739 8693 www macraigor com Important Notice Macraigor Systems LLC makes no representations or warranties regarding the contents of this document Information in this document is subject to change without notice at any time and does not represent a commitment on the part of Macraigor Systems LLC This manual is protected by United States Copyright Law and may not be copied reproduced transmitted or distributed in whole or in part without the express prior written permission of Macraigor Systems LLC MPDEMON User s Manual version 2 0 2002 04 Macraigor Systems LLC All rights reserved OCDemon is a trademark of Macraigor Systems LLC All other brand and product names are trademarks service marks registered trademarks or registered service marks of their respective companies Table of Contents Chapter 1 Introduction 1 1 What exactly is the MPDEMON 4 2 1 2 What software is available for the MPDEMON 2 Chapter 2 Getting Started 2 1 Unpacking your MPDEMON 0 eeeee 3 2 2 Features and Specifications 0 000 3 2 3 Connecting cables 4 2 3 1 Personality Module 0085 4 2 3 2 Host Connection 2 335 fsssacs seins cass 5 2 3 3 Power Connection ceeeeeeee
12. ON s flash memory and will remain active until it is changed by the user Modifying the JTAG BDM Clock Rate The JTAG speed parameter can have a value from 1 the fastest 15 mhz to 8 the slowest 8 Khz On the Web page 1 Click on the OCDREMOTE Configuration link 2 Select the new JTAG BDM speed from the JTAG Speed dropdown list 3 Click the Submit Button to store the new value into flash 4 Click the Reboot Button to restart the MPDEMON the new value will now take effect On the Serial Port Display oe he Enter O lt cr gt _ to go to the OCDREMOTE menu Enter the new JTAG BDM clock rate 1 8 Enter n lt cr gt after Do you want to change the JTAG chain Enter r lt cr gt to restart the MPDEMON the new value will now take effect Modifying the JTAG Scan Chain Configuration On the Web page 1 Click on the OCDREMOTE Configuration link To change the type of CPU already in the list select the new CPU type from the CPU Type dropdown list for that position in the scan chain If the device you wish to add is not a CPU e g a TAP controller FPGA etc select the UNKNOWN device type and enter the length in bits of the device s JTAG Instruction Register in the JTAG Parameters IR column and the length in bits of the device when it is placed in bypass mode this is typically 1 in the JTAG Parameters Bypass length column To add a new CPU to the list click the Add CPU button
13. The connections on the front of the MPDEMON should look similar to the diagram below Please note that the Personality Module cables for ARM 20 and XScale processors have the same number of pins on each side of the pod and therefore the module CAN be plugged in backwards Make sure that the longer side of the cable is plugged into the MPDEMON or the Personality Module will probably be damaged 5 mpDemon O Host on OCD CONNECTION OPTIONS On Chip Debug O X BDM JTAG Target board header wz 2 3 2 Host connection The serial connection on the MPDEMON is used for two purposes It can initially be used to set up some configuration items for the MPDEMON and can subsequently be used as the debug connection If you intend to use the serial connection for setup then it must be connected to a serial terminal with parameters set to 19200 N 8 1 This is most typically done by connecting to the serial port on a PC and running a terminal emulation program such as Hyperterm Also the OPTIONS jumpers on the front of the MPDEMON must be configured as in the following diagram OPTIONS OO00O OO OCD If you will be using the parallel connection plug in the parallel cable to the MPDEMON and to your host computer If you will be using the Ethernet connection for either setup or as the debug connection locate and plug into an appropriate network connection You may need to talk to your network administrator in order to
14. atible nibble EPP and ECP modes We have thoroughly tested the device using the Windows drivers that we make available to all of our third party partners and the drivers that are installed with our software Most versions of Linux also support multiple parallel port modes including EPP and ECP The mode of your parallel port is set in your BIOS setup utility This utility is typically accessed by pressing a particular key when the computer is booting up There will normally be a message shown on the screen during startup that will say something like Press lt key gt to enter setup Different computers use different keys for this purpose so you must read the message For the best performance set your parallel port mode to ECP If ECP is not available then EPP is next best choice You should only use a parallel port cable that is rated for IEEE 1284 such as that included with the MPDEMON Inferior cables are prone to data errors Most parallel ports are actually on an ISA bus inside of a PC This is due to legacy design Because of inherent wait states associated with the ISA bus you will find that you can get much better performance using an add in PCI card that has a standard parallel port These are readily available on the open market and are generally worth the cost around 50 US or less If you have multiple parallel ports on your computer make a note of which port you have the MPDEMON plugged into You will
15. ddress 00 60 bF 01 06 04 Macraigor API4 Port 1000 OCDREMOTE JTAG speed 1 JTAG Tio lt CLIPPC8248 8888 2 PPC8248 8889 lt TDI mpDemon Command Menu Set Serial API baud Rate Set DHCP option Set TCP IP Address Set TCP IP Mask Set TCP IP Gateway Set OCDREMOTE Configuration Test OCDREMOTE Configuration Update License Code s Set Macraigor API4 Port Ping TCP IP address Display Error Log R Reboot mpDemon Type Command lt Enter gt will Te heal Ready erial COM1 28 49 28 Rows 83 Cols T100 m 4 B D A M G 0 T L C P E Web interface showing OCDREMOTE configured for two PPC8248 processors Ele Edt view Favorites Tools Help Q pak HAA Search g Favortes A Meda O 2 E LJ a PE gt E ks eY Flet Q eachesay Bit my eBay Q Bid Alert gt A Watch Alert SP items won Gis Bookmarks Macraigor Systems LLC mpDemon System Configuration OCDREMOTE Bus Configuration Firmware Version 3 0 0 1 JTAG Lengths in Bits Licenses FP Index CPU Type IR Bypass JTAG Speed 1 TDO MAC Address 00 60 b 01 06 04 DHCP of 1 PPC8248 IP Address 192 168 0 48 2 PPC8248 TP Mask 255 255 255 0 TP Gateway 192 168 1 1 TDI TCP IP Configuration OCDREMOTE Configuration License Configuration Header 12 This configuration information only has to be entered once for a given target system It is stored in the MPDEM
16. e MPDEMON is using an address that is already in use on your network and you must change the MPDEMON s address 16 6 Check with your network administrator to verify that the gateway address is set correctly o Serial connection 1 Verify that the MPDEMON is configured to use the same baud rate as the rate that you are specifying in your host software 2 Verify that the OPTIONS jumper is in the correct position see section 3 3 3 Verify that your host software is configured to use the correct COM port e g COM1 COM2 etc 17 Appendix A OCD Pinouts Common OCD pinouts as used by MPDEMON Personality Modules NOTE Macraigor Systems accepts NO responsibility for the accuracy of the following information These are the pinouts that our Personality Modules use but a semiconductor manufacturer may change these specifications at any time We strongly recommend that you use the OCD header specified by the semiconductor manufacturer and refer to this list before connecting to your target If the pinouts shown below do not match the OCD connection on your board do NOT attempt to connect the Personality Module to your target as this may damage your board Contact Macraigor Systems to alert us of this situation General Notes Unless otherwise indicated all headers are male dual row Berg style connectors on 0 1 centers We do not specify the use of pull ups or pull downs on any signals although they may be needed Check w
17. e to configure the MPDEMON you can now plug in an Ethernet cable to your network and point a browser to the TCP IP address shown in the menu and you should see a web page that looks like the following Z Macraigor Systems LLC mpDemon MindSpring Internet Explorer File Edit View Favorites Tools Help Q x A Al swe eros ae Oo L Address http 192 168 0 46fndexsht OOOO G0 inks gt Macraigor Systems LLC mpDemon System Configuration OCDREMOTE Bus Configuration Firmware Version 3 0 0 1 JTAG Lengths in Bits Licenses FP li CPU Type IR Bypass JTAG Speed 1 fg MAC Address 00 60 bf01 06 04 TDO DHCP off IP Address 192 168 0 48 TP Mask 255 255 255 0 IP Gateway 192 168 1 1 1 TCP P Co ation OCDREMOTE Co ation License Cot ation SHeader 3 Configuring Your Host Connection 3 1 Ethernet The Ethernet connection on the MPDEMON is a standard 10 baseT jack Communication with the MPDEMON is via a TCP IP network connection Before you can use the MPDEMON with the Ethernet connection several network parameters must be configured You must set the TCP IP address the network mask and if necessary the default gateway address Configuration of these parameters is done using the menu selections shown in the previous screen shots of either the serial menu interface or the web based interface There are two ways to configure the network parameters for your MPDEMON You can
18. eee 5 Chapter 3 Configuring Your Host Connection G2 A Ws a 6 ne we Pe ee 7 3 1 1 Manual Ethernet Configuration 7 3 1 2 DHCP Ethernet Configuration 7 3 2 Parallel onii ai N 9 Deo Serial oeno a E a aai 10 Chapter 4 Setting up the GDB Remote Server 11 Chapter 5 Personality Modules 14 Chapter 6 Updates and Upgrades 15 Chapter 7 Trouble Shooting 16 Appendix A OCD Pinouts 0 5 18 1 Introduction This guide describes all of the tasks necessary to connect your new MPDEMON to your host computer system and your target under test The actual steps needed will depend on the host software you will be using and the connection method that you select serial parallel or Ethernet 1 1 What exactly is the MPDEMON Many modern CPUs have one or another form of On Chip Debug OCD This may take the form of BDM Background Debug Mode JTAG IEEE 1149 x EJTAG Extended JTAG OnCE On Chip Emulation COP or one of many others depending on the specific target processor All of these interfaces comprise an electrical timing specification as well as a communication specification The MPDEMON is a device that translates commands from a host debugger into the appropriate OCD format and communicates with the target CPU under test The MPDEMON communicates with the host debugger via Ethernet serial or parallel communication channel
19. ith the chip manufacturer TVcc pins should be the I O ring voltage This signal is used to determine the electrical characteristics of the other signals If you must current limit this line allow the probe at least 2 mA Unless otherwise indicated RESET or HRESET is an open collector signal from the probe to the target It should directly drive the target processor and not drive power on reset circuits or the like If you are building your own board place the header as close to the processor as possible use short traces of approximately equal length on all clock and data signals Pins are identified by number and type o output from target processor to OCD interface i input to target processor from OCD interface p power pin oc open collector driven from OCD interface either floating or actively held low nc notconnected ie not driven nor read by OCD interface k key pin is typically missing from the target board COP pinout for Motorola PowerPC 6xx 7xx 8xxx and IBM PowerPC 6xx and 7xx IBM also refers to this connection as RISCWatch TDO o 1 2 i QACK TDI i 3 4 i TRST HALTED o 5 6 p TVcc TCK i 7 8 nc TMS 1 9 10 ne SRESET i 11 12 p GND HRESET oc 13 14 nc CKSTP_OUT o 15 16 p GND 18 IBM 4xx IBM also calls this RISC Watch TDO TDI HALTED TCK TMS HRESET SRESET CKSTP_OUT BDM for Motorola MPC8xx MPC5xx m
20. ld programmable When available upgrades may be found on the Macraigor Systems web site www macraigor com Download the upgrade package and upzip the files into a directory that you will remember Read the readme txt file for directions on how to perform the upgrade In some cases an upgrade may not be compatible with your existing MPDEMON hardware and you will get errors when trying to install the new firmware If this is the case you need to contact Macraigor Systems and we will swap out your existing MPDEMON for one that is updated with the most current hardware and firmware 15 7 Trouble Shooting If the MPDEMON is not working after following the directions in this manual try the suggestions below before contacting Macraigor Systems e No lights come on or PWR light is not on Make sure that the power supply is plugged into an outlet and that the 5V power connector is plugged into the MPDEMON If this problem persists then the MPDEMON is probably either damaged or has experienced an internal failure Contact Macraigor Systems e PWR light is flashing and an error message is displayed on the terminal The MPDEMON has experienced an internal failure This typically means that the MPDEMON hardware is broken in some way Contact Macraigor Systems and report the error message that is displayed on the serial terminal screen e Lights come on correctly but nothing is displayed on the serial terminal connection 1 Verify
21. n link Make sure that the drop down box at the top of the screen is set to Use static IP Fill in the IP Address IP Mask and IP Gateway fields Click on the Submit button and then reboot the MPDEMON as instructed oS 3 1 2 DHCP Ethernet Configuration For DHCP configuration via the serial interface 1 Enter d at the menu prompt and then y to turn on DHCP 2 Once you change Use DHCP to Yes you must reboot the MPDEMON i e unplug the power connector and then plug it back in or select the R menu option For DHCP configuration via the web interface 1 Click on the TCP IP Configuration link on the main page 7i 2 In the drop down box at the top of the page select Use DHCP 3 If your network s DHCP and DNS servers are properly configured then the MPDEMON can request a host name for itself Enter your choice of host name in Host name box 4 Click on the Submit button and then reboot as directed When the MPDEMON boots this time it will attempt to obtain its network parameters from a DHCP server While it is in the process of retrieving the parameters you will see a serial screen on which the IP parameters are listed as Resolving Once the MPDEMON has obtained the parameters the screen will change and display the new values You need the TCP IP address from this screen in order to connect from your host software so make a note of it Note
22. n connecting cables In order to minimize noise while using the MPDEMON with the serial or parallel connections it is best to plug the target the MPDEMON and the host computer into the same outlet If you are using the Ethernet interface the target and MPDEMON should be plugged into the same outlet Both the quality and the length of cables can make a large difference as to the overall system performance Use only the cables supplied with the MPDEMON Longer or inferior cables will almost certainly introduce noise and possibly errors in data transfers 2 3 1 Personality Module The Personality Module consists of the long red or blue cable small black box and the shorter target connection cable A different Personality Module is needed for each type of target processor The module is responsible for converting signals into the correct pin out and voltage levels for a particular processor For details of the pinouts that are used for each type of processor see Appendix A With both the target system and the MPDEMON off plug the longer side of the Personality Module into the front black connector on the MPDEMON and make sure that the locking tabs close securely Now connect the short target cable end of the module to the header on your target system making sure that the connection is secure and that pin 1 on the cable matches pin 1 on the header Pin 1 on the cable is identified by either a red wire or by a darker coloring on one wire
23. ni file should have the line remote target lt MPDEMON s ethernet address gt lt cpu s GDB monitor tcp ip port gt This tells GDB to send its monitor commands to the GDB monitor tcp ip port on the MPDEMON These commands will be routed by the MPDEMON to a single target CPU Multiple GDB sessions can be run simultaneously each controlling a different CPU on the target board For example to debug two MPC8248 CPUs on a target system connected to an MPDEMON at tcp ip address 192 168 1 4 configured so that CPU 1 uses port 8888 and CPU 2 uses port 8889 you would start two GDB sessions The first session would control CPU 1 and its gdb ini file would contain the line remote target 192 168 1 4 8888 The second session would control CPU 2 and its gdb ini file would contain the line remote target 192 168 1 4 8889 11 The current scan chain configuration and the port s assigned to each CPU are displayed on both the MPDEMON s web page and on the serial terminal interface The following screen shots show the example configuration discussed above Serial interface showing OCDREMOTE configured for two PPC8248 processors g Serial COM1 SecureCRT File Edit Yiew Options Transfer Script Tools Window Help DHAOD BOQ SSESleRsIt ole Macraigor Systems mpDemon tm version 3 0 0 1 Licenses els API Baud Rate 115200 Use DHCP t No TCP IP Address 192 168 0 48 Mask 255 255 255 0 Gateway 192 166 1 04 MAC A
24. s and then communicates with the target CPU ina wide variety of OCD formats including all of those previously mentioned as well as others Because there are so many OCD formats each with its own electrical characteristics and pin outs the MPDEMON uses a personality module This is a small external module that connects to the front of the MPDEMON and provides the correct signals pin outs and voltage levels to the specific target CPU being debugged 1 2 What software is available for the MPDEMON There are many debuggers available that support the MPDEMON as well as various other applications such as Flash memory programmers and general JTAG test utilities See our website for updated lists of our third party partners but some of the companies that have software compatible with the MPDEMON are Accelerated Technology Embedded Systems Division of Mentor Graphics ARM Ltd Allant Software CAD UL Green Hills Software ARC formerly Metaware Metrowerks Microsoft Red Hat Any version of GDB that supports the GDB Remote Debugging Protocol Macraigor Systems specializes in Flash memory programming technology and test software and also has free software that is available for the MPDEMON The free debuggers available from Macraigor Systems include a low level command line debugger called OCD Commander and full GNU toolsets for ARM7 ARM9 MIPS32 MIPS64 PowerPC and XScale All of these tools may be downloaded from our website ww
25. the MPDEMON 10 4 Setting up the GDB Remote Server The MPDEMON has a built in GDB Remote Server that allows any GDB that supports the remote protocol to connect directly to the device via a TCP IP connection In addition the MPDEMON supports debugging target systems that have more than one processor or other device s on the same JTAG scan chain When multiple processors on a single scan chain are being debugged a separate GDB session must be created for each processor Prior to starting an Insight GDB session s on your host you must first configure the MPDEMON s OCDREMOTE GDB interface for your target board OCDREMOTE converts GDB commands to JTAG BDM signals that control your target board s CPU s as shown in the following diagram MPDEMON GDB host session s GDB monitor OCDREMOTE commands and Server responses via tcp ip port s JTAG BDM Signals Target board with one or more CPUs To configure OCDREMOTE you must tell it 1 The JTAG BDM Clock Rate this is the rate at which the MPDEMON clocks the JTAG BDM lines on the target 2 The JTAG scan chain configuration what devices are on the target s JTAG BDM scan chain and if there are multiple devices on the scan chain two or more CPUs TAP controllers FPGAs etc what order the devices are in Using this information the MPDEMON creates a GDB monitor tcp ip port for each active CPU on the target board s JTAG BDM scan chain Your GDB session s gdb i
26. w macraigor com 2 Getting Started 2 1 Unpacking your MPDEMON The MPDEMON is shipped with the following items Verify that you have received these items in your package MPDEMON Six foot RS 232 male DB 9 to female DB 9 cable Six foot IEEE 1284 male DB 25 to female DB 25 cable Six foot 10 BaseT Ethernet cable 5V International switching power supply One target processor Personality Module see Chapter 4 for a further description of Personality Modules 2 2 Features and Specifications Small footprint 5 x 3 5 excluding cables Weighs less than 1 1b Uses 5V 2 amp International switching power supply Set up and configuration via either serial connection or web based user interface RS 232 serial interface at up to 115200 Baud IEEE 1284 parallel interface supporting all parallel communication modes 10 BaseT Ethernet with Link and Activity indicators Built in support for GDB remote protocol LED indicators for power host communications and target running stopped Interchangeable Personality Modules to support different processors Automatic target voltage detection down to 1 8V Supports up to 200 target devices on one scan chain Supports JTAG clock rates up to 16 MHz Long 18 target connection cable Field upgradeable firmware 2 3 Connecting cables Note that no part of the MPDEMON is designed to be hot plugged All parts of the system including the target MPDEMON and the host PC should be turned off whe
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